Name Planned shipping method Start Date  
Hydrocarbons in soil (ISO 16703)
Article Number: 2011278
Category: chemical-physical testing Environmental analytics soil
Accreditation: This proficiency test is not included in the scope of the accreditation.
Shipping at room temperature December 2027 Add to cart
Identification moulds in indoor air
Parameters (qualitative): identification of moulds
Article Number: 2011301
Description: Proficiency test series for testing for microbiological contamination of indoor air. This part deals with the identification of mold. Gel filters prepared with mold are used as sample material. No separate air sampling is carried out. Possible methods for participation are e.g. ISO 16000-17.
Category: immunological, molecular biological and microbiological testing Environmental analytics indoor air
Accreditation: This proficiency test is not included in the scope of the accreditation.
risk group 1
Is currently underway. Can still be booked.
Refrigerated shipping October 2025 Add to cart
Identification moulds in indoor air
Parameters (qualitative): identification of moulds
Article Number: 2011301
July 2026 Add to cart
Identification moulds in indoor air
Article Number: 2011301
July 2027 Add to cart
Legionella recooling water
Parameters (quantitative): Legionella spp. membrane filtration (after heat treatment) [cfu/100ml], Legionella spp. membrane filtration (with acid treatment) [cfu/100ml], Legionella spp. plating (original sample) [cfu/100ml], Legionella spp. plating (after heat treatment) [cfu/100ml], Legionella spp. plating (with acid treatment) [cfu/100ml]
Article Number: 2010958
Category: immunological, molecular biological and microbiological testing Environmental analytics recooling water
Accreditation: This proficiency test is within the scope of the A2LA accreditation.
risk group 2
Frozen shipping November 2025 Add to cart
Legionella recooling water
Article Number: 2010958
September 2026 Add to cart
Legionella recooling water
Article Number: 2010958
September 2027 Add to cart
Legionella spp. drinking water
Parameters (quantitative): Legionella spp. plating (original sample) [cfu/100ml], Legionella spp. membrane filtration (with acid treatment) [cfu/100ml]
Article Number: 2010114
Category: immunological, molecular biological and microbiological testing Environmental analytics drinking water
Accreditation: This proficiency test is not included in the scope of the accreditation.
risk group 2
Frozen shipping September 2026 Add to cart
Legionella spp. drinking water
Article Number: 2010114
September 2027 Add to cart
Microplastic – particle number
Parameters (quantitative): particle number [particle number / g]
Article Number: 2010395
Description: These are artificial samples that can contain particles and fibres in the range of 200 µm to 600 µm.
Category: chemical-physical testing Environmental analytics drinking water
Accreditation: This proficiency test is not included in the scope of the accreditation.
Refrigerated shipping December 2026 Add to cart
Microplastic – particle number
Article Number: 2010395
December 2027 Add to cart
PFAS in drinking water
Parameters (quantitative): total perfluorooctanesulfonic acid (CAS 1763-23-1) [ng/l], total perfluorooctanoic acid (CAS 335-67-1) [ng/l], total perfluorononanoic acid (CAS 375-95-1) [ng/l], total perfluorohexane sulfonic acid (CAS 355-46-4) [ng/l]
Article Number: 2011123
Description: In each case, the sum of linear and branched isomers of PFOS, PFOA, PFNA and PFHxS is queried. The concentration of per- and polyfluorinated substances (PFAS) is in the ng/kg range.
Category: chemical-physical testing Environmental analytics drinking water
Accreditation: This proficiency test is not included in the scope of the accreditation.
Frozen shipping September 2026 Add to cart
PFAS in drinking water
Article Number: 2011123
September 2027 Add to cart
PFAS in soil
Parameters (quantitative): total perfluorooctanesulfonic acid (CAS 1763-23-1) [µg/kg dry matter], total perfluorooctanoic acid (CAS 335-67-1) [µg/kg dry matter], total perfluorononanoic acid (CAS 375-95-1) [µg/kg dry matter], total perfluorohexane sulfonic acid (CAS 355-46-4) [µg/kg dry matter]
Article Number: 2011127
Description: In each case, the sum of linear and branched isomers of PFOS, PFOA, PFNA and PFHxS is queried. The concentration of per- and polyfluorinated substances (PFAS) is in the µg/kg range.
Category: chemical-physical testing Environmental analytics soil
Accreditation: This proficiency test is not included in the scope of the accreditation.
Frozen shipping June 2026 Add to cart
PFAS in soil
Article Number: 2011127
June 2027 Add to cart
Plastic materials - aerobic biodegradability (ISO 14855-2, ASTM D5338-15)
Parameters (quantitative): Biodegradation via CO2 [%]
Article Number: 2011138
Description: The samples are to be tested for biodegradability at 58°C under aerobic conditions over a period of 45 days.
Category: immunological, molecular biological and microbiological testing Environmental analytics biodegradation
Accreditation: This proficiency test is not included in the scope of the accreditation.
Refrigerated shipping October 2026 Add to cart
Plastic materials - aerobic biodegradability (ISO 14855-2, ASTM D5338-15)
Article Number: 2011138
October 2027 Add to cart
Plastic materials - anaerobic biodegradability (ASTM D5511)
Parameters (quantitative): Biodegradation via CO2 and CH4 development [%]
Article Number: 2011139
Description: The samples should be tested for biodegradability under anaerobic conditions at 37°C (mesophilic conditions) over a period of 30 days. Note: Please contact us if you would like to test the samples at 52°C (thermophilic conditions).
Category: immunological, molecular biological and microbiological testing Environmental analytics biodegradation
Accreditation: This proficiency test is not included in the scope of the accreditation.
Refrigerated shipping October 2026 Add to cart
Plastic materials - anaerobic biodegradability (ASTM D5511)
Article Number: 2011139
October 2027 Add to cart
Ps. Aeruginosa drinking water
Parameters (quantitative): Ps.aeruginosa [cfu/100ml]
Article Number: 2010660
Description: Possible methods for participation, e.g.: ISO 16266
Category: immunological, molecular biological and microbiological testing Environmental analytics drinking water
Accreditation: This proficiency test is not included in the scope of the accreditation.
risk group 2
Frozen shipping July 2026 Add to cart
1 Parameters with this label depend on the number of participants and/or the choice of materials.
Under certain circumstances, this parameter may not be available in the proficiency test.